ASMedia is also said to be in charge of the B550 design. It's been pretty quiet about the B550 lately and we still don't know 100 percent certain if this chipset will support PCI Express 4.0.
The "X670" will hopefully run cooler than the X570:
The MyDrivers report predicts that the successor to X570, the supposed "X670," could be sourced from a third-party firm, much like the B550, and implement PCI-Express gen 4.0, not just as chipset-bus, but also putting out PCI-Express gen 4.0 general purpose lanes. A possible design goal of the X670 could be to implement PCIe gen 4.0 switching fabric without running too hot, resulting in a cooler chipset than can make do with fanless cooling solutions, much like the X470. AMD will continue to make "chipsets" in the form of I/O controller dies for use in its MCM processors, although the relatively low-margin motherboard chipset business could be axed.Via: TPU